On Fri, Sep 28, 2007 at 04:10:00PM +1000, Nick Piggin wrote:That's why I've used words like: "not differ too much" and "within some limits" above. So, it's only about being reasonable, compared to our previous versions, and to others, if possible. This should be not impossible to additionally control (delay or accelerate) yielding tasks wrt. current load/weight/number_of_tasks etc., if we know (after testing) eg. average expedition time of such tasks with various schedulers. Of course, such tests and controlling paremeters can change for some time until the problem is explored enough, and still no aim for exactness or to please everybody. BTW, it looks like risky to criticise sched_yield too much: some people can misinterpret such discussions and stop using this at all, even where it's right. Regards, Jarek P. -
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